Home / 666,928,301.28-920,366,459.67-369,575,510.37

Finding the Fourth Proportional to 666,928,301.28, 920,366,459.67 and 369,575,510.37

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Solution

The fourth proportional to 666,928,301.28, 920,366,459.67 and 369,575,510.37 is: 510,017,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,928,301.28 : 920,366,459.67 = 369,575,510.37 : x
  2. Step 2: Convert to fraction form
    666,928,301.28/920,366,459.67 = 369,575,510.37/x
  3. Step 3: Cross multiply
    666,928,301.28x = 920,366,459.67 × 369,575,510.37
  4. Step 4: Simplify right side
    666,928,301.28x = 340,144,904,059,970,240
  5. Step 5: Solve for x
    x = 340,144,904,059,970,240/666,928,301.28
  6. Step 6: Final answer
    x = 510,017,198.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.